Re: A curiosity...

[Hyman Rosen <hyrosen@mail.com>]

Ludovic Brenta wrote:
> Yes. In fact, C requires that pointers and integers be interchangable
> so as to make address arithmetic "transparent" and extremely
> dangerous. That's why, instead of writing "&th[t]" as Adam did, they
> wrote "th+t" and thought themselves clever.

That's completely false. The expression 'th + t' exhibits two features of C,
neither of which involves pointers and integers being interchangeable. The
first is that in an expression, a value of type 'array of T' converts to the
type 'pointer to T' with value 'address of first element of that array'. The
second is that adding integers to pointers is equivalent to indexing; given
a pointer to an element of an array, adding or subtracting a number from it
results in a pointer pointing to another element of the array.